USB_AUTOPM_GET_INTER(9) USB Core APIs USB_AUTOPM_GET_INTER(9)NAMEusb_autopm_get_interface_async - increment a USB interface´s PM-usage
counter
SYNOPSIS
int usb_autopm_get_interface_async(struct usb_interface * intf);
ARGUMENTS
intf
the usb_interface whose counter should be incremented
DESCRIPTION
This routine does much the same thing as usb_autopm_get_interface: it
increments intf´s usage counter and queues an autoresume request if the
result is > 0. The differences are that it does not acquire the
device´s pm_mutex (callers must handle all synchronization issues
themselves), and it does not autoresume the device directly (it only
queues a request). After a successful call, the device will generally
not yet be resumed.
This routine can run in atomic context.
COPYRIGHTKernel Hackers Manual 2.6. November 2013 USB_AUTOPM_GET_INTER(9)